alpha-dic/compiled/middlewares/activation.js

Asynchronous dependency injection container

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.activationMiddleware = exports.onActivation = void 0;
const activationAnnotationName = '__onActivation';
function onActivation(hook) {
    return {
        name: activationAnnotationName,
        hook
    };
}
exports.onActivation = onActivation;
function activationMiddleware(definition, next) {
    const service = next(definition);
    const hooks = definition.annotations
        .filter((a) => a.name === activationAnnotationName)
        .map((a) => a.hook);
    if (hooks.length) {
        let promise = Promise.resolve(service);
        for (const hook of hooks) {
            promise = promise.then(hook.bind(this));
        }
        return promise;
    }
    return service;
}
exports.activationMiddleware = activationMiddleware;